baber/WOPTO huggingface dataset:
Patent DE-2852488-A1 (DE)
Title: Push button telephone number selection circuit - compensates for signal attenuation due to long lines by using receive line potential as reference in evaluation circuit
Inventor: WULFF JOACHIM
IPC: H04Q1/38
Filed: 1978-12-05
Abstract: The application is to telephone systems in which the subscriber is connected to the exchange by four lines, two for transmission and two for reception. The length of line joining the subscriber to the selector in the exchange may vary greatly in length and therefore the signal strength available at the selector may be considerably attenuated by the line impedance. When the push button for selecting a number is closed the appropriate controls put positive potential on one transmit line. This potential is applied through routing diodes to the other transmit line and to one of the receive lines. The potential of the latter line is connected through an operational amplifier to charge a capacitor whose potential is then applied as a reference to the inverting input of a second amplifier. The potential of the transmit line is applied to the other input. The validity of the incoming signal is thus checked before being accepted.
Patent DE-2857130-A1 (DE)
Title: Heaters for the runners of hot runner injection moulding tools - designed for maximum temp. at the heater tip, next to the cavity gate
Inventor: MUELLER WALTER
IPC: B29C48/03
Filed: 1978-06-07
Abstract: Heating elements for hot runner injection moulding comprise a hollow metal tube made of two electrically insulated segments linked at each end with a coaxial mandrel having a pointed tip. A resistance heating current is through the two parts of the tube via the mandrel. The ratios of metal surface/volume are such that the tip of the mandrel, adjacent to the mould gate, is the hottest part of the tool. The heater design ensures that the melt enters the mould cavity at the appropriate temp. without having to be overheated earlier in its flow path. One or more runners incorporating such heaters may serve individual moulds with resin coming from a common melt manifold contg. a preheater.
Patent DE-2904064-A1 (DE)
Title: Multispeed motor vehicle gearbox - has main gear change sleeve coupled to gear change lever for its longitudinal motion and to gear change shaft for its cross motion
Inventor: DROESCHEL HELMUT
IPC: F16H63/32
Filed: 1979-02-03
Abstract: The speed change gearbox for motor cars has a gear lever which is coupled for its longitudinal movement for a pair of gears just to the main control sleeve. Group control sleeves are actuated by curved grooves of a control shaft, when the gear level is moved crosswise. The connections to the gears are made by control forks, rockers and link rods. The control shaft has a toothed rim to change a group and a second toothed rim to acts as an interlock. Teeth, linked to the gear lever, engage in the former in the neutral lever position. A lug engages between the teeth of the latter when out of neutral. The control shaft is connected to a servo-piston for its shifting movement, this piston further tensioning an prestressed spring, when moved from its centre position. The engaged gears may be indicated optically by lamps, this indication being transmitted by an electric rotary switch, coupled for rotation to the control shaft.
Patent DE-2909811-A1 (DE)
Title: Refrigerated food cabinet with steam generator - has pipe inside air circulating part with end emerging in annular perforated pipe
Inventor: RUETTEL KUNO
IPC: A47F3/04
Filed: 1979-03-13
Abstract: The cabinet for food does not dry out of the food, and for this purpose incorporates an electric steam generator (10) as well as an air circulator and cooler. The steam generator (10) is connected to a pipe (11) positioned at the end inside the suction area of the air circulator. The end of the pipe (11) comes out in an annular pipe (12) around the fan (2) motor, and which has apertures. Behind the air circulator is an air duct (13) with radially outward projecting blades (14). An additional condenser is positioned in the base (6)of the display compartment (1) separating it from the refrigerator.
Patent DE-2914739-A1 (DE)
Title: Threaded wall anchoring bolt - has axial taper groove contg. captive wedge fixing in wall bore as nut at front end is tightened
Inventor: FISCHER ARTUR DR
IPC: F16B13/08
Filed: 1979-04-11
Abstract: The anchoring bolt (1) is intended for securing a component (2) to a wall. The bolt has screw thread (3) on its projecting end for fixing the component by a nut (4), whilst its other end is provided with a longitudinal groove (8) whose bottom is inclined in outward direction towards the end inserted in a bore (6) in the wall. The groove contains a captive wedge piece (5) which fixes itself in the bore as the nut is tightened. The wedge piece may be a small plate converging towards the bolt end and may have an inner concave contour i that direction.
Patent DE-2919801-A1 (DE)
Title: Nitrogen-rich solids recovery from dairy waste waters - by passing through filter medium under conditions for growing Geotrichum candidum and/or Fusarium tabacinum
Inventor: WHEATLEY ANDREW
IPC: A23K1/00
Filed: 1979-05-16
Abstract: Parent patent discloses the recovery of N-rich solids by passing a protein-rich waste water, from milk- or dairy prod. processing, through a synthetic filter medium. Waste water pH is set to 3-6, so that fungi having a high N-content are preferentially grown on the wetted surfaces inside the filter medium. The N-rich solids leaving the filter medium are then separated and recovered. In this addn. the fungus culture contains Geotrichum Candidum, (I), and/or Fusarium tabacinum, (II) The dried solids can be used as animal feedstuff additives, soil conditioners or fertilisers. The N-content of the dried solids is increased from e.g. 2 wt. % to =55 wt.%. The dry wt. of the solids makes up 50 wt.% of BOD removed through filter.
Patent DE-2919893-A1 (DE)
Title: Frame for tying up flowers and shrubs - includes arrangement of longitudinal and transverse bars connected and clamped together
Inventor: WIRTH HANS
IPC: A01G9/12
Filed: 1979-05-17
Abstract: The frame is for horticultural purposes such as tying up flowers or shrubs. It consists of columns which can be inserted into the soil, with connected transverse and longitudinal bar supports which are releasably joined together by sheath-type connecting pieces. There are also clamping devices to clamp the connecting pieces rigidly to the inserted bars. The clamping device has two wedges (5, 6) which are inserted at opposite ends into the correcting piece (1). The wedges are tensioned by a spring element (g) in the clamping position.
Patent DE-2923975-A1 (DE)
Title: Pyrrolidin-2-one-1-yl alkyl carboxylic acid amide(s) - esp. 2,6-di:methyl anilide of pyrrolidinone acetic acid used to treat cerebral oxygenation insufficiency, migraine etc.
Inventor: BETZING HANS DIPL CHEM DR
IPC: C07D207/26
Filed: 1979-06-13
Abstract: Pyrrolidin-2-one-1-yl-alkylcarboxylic acid amides of formula (I) and their acid addition salts are new. In (I) R = H or hydroxy; R1 = H or methyl and R2 = pyridyl or phenyl substd. by 1-3 independently chosen substituents. Pref. substituents are CF3, halo, nitro, acetyl, 1-4C opt. branched alkyl, 1-4C alkoxy, 1-7C opt. branched alkylthio, -5-(CH2)n-CHR3R4 (II), -SO2R5 (III) or -COO-(CH2)2-NR6R7 (IV); n = 1 or 2; R3 = H or methyl; R4 = hydroxy or -NR8R9 (V); R5 = -NH2 or 1-3C alkyl; R6,R7 independently = H, methyl or ethyl; R8 = H or methyl; R9 = methyl or opt. substd. benzyl or R8 and R9 together with the N atom form a substd. pyrrolidino gp. e.g. 2-oxo-pyrrolidino. (I) have central vasoactive and metabolism regulating properties, they inhibit agglutination of thrombocytes and have tranquillising activity. They may be used prophylactically or therapeutically to treat cerebro-ischemic or atrophic troubles, such as organic psychic syndrome and migraine, and to treat cerebral irrigation insufficiency, cerebral aging etc. The cpds. may be administered enterally in doses of 1-1000 mg, pref. 10-100 mg, or parenterally in doses of 0.1-100 mg, pref. 1-20 mg.
Patent DE-2928806-A1 (DE)
Title: Electrolytic treatment of silver concentrates - esp. reduced sludge obtd. in photographic processes, where pure silver is collected on cathode
Inventor: DEIERLING BERND DR
IPC: C25C1/20
Filed: 1979-07-17
Abstract: The powdered concentrate is dissolved chemically in a nitric acid electrolyte in the anode chamber of an electrolysis cell; and pure Ag is deposited on a cathode in a cathode chamber sepd. from chamber by a combined diaphragm made of cotton fabric and a filter paper. The pref. cell includes a graphite anode. The treatment is used esp. for reduced sludge obtd. from photographic processes, so Ag in the sludge can be reclaimed.
Patent DE-2929289-A1 (DE)
Title: Firearm firing pin safety catch - has block to prevent pin sliding forward until moved by trigger action
Inventor: EDER JOSEF
IPC: F41A17/72
Filed: 1979-07-19
Abstract: The firing pin (14) safety catch is used in portable firearms and pistols. It has a block (16) preventing the firing pin moving forward and is only acted on by the trigger (4). The block moves in the barrel (1) and consists of a pivoting lever. The blocking can be by block, bolt, rod or peg. In all cases, these are acted on by a spring (13). The block is moved by force from the trigger and can be acted on by a peg going through an opening in the trigger or a roller.
Patent DE-2931859-A1 (DE)
Title: Counter top electric deep fryer - has side attachments providing handles, hinge mountings for cover and basket and housing control circuit
IPC: A47J37/12
Filed: 1979-08-06
Abstract: The deep-fryer has a deeply dished container incorporating an electric heating element, a cover and a frying basket, which fits into the container. The latter has two axial attachments at diametrically opposite points, providing handles for lifting the container and also defining a chamber for housing the electric and electronic control circuit for the heating element. Pref. the handles are formed by cylindrical radial recesses, their inner cylindrical surfaces having rear cut-outs at the side adjacent the container opening. The axial attachments may also have a hooked nose near the base of the container, to allow the lead cable to be wound round them during storage and the frying basket is pref. hinged to the top of one attachment and the cover hinged to the top of the other.
Patent DE-2937592-A1 (DE)
Title: Double tuned band-pass filter with inductive coupling - has capacitors across coupling and between input and output defining filter attenuation poles
Inventor: HAEGELE WALTER DIPL ING
IPC: H03H7/01
Filed: 1979-09-18
Abstract: The filter has a capacitor and a primary filter connected in series with the input (1) and a second capacitor and secondary filter connected in series with the output (2), with the filter coupling (L12) having a parallel capacitor (C12). This capacitor (C12) defines an initial filter attenuation pole, with a second pole defined by a second parallel capacitor (C03) across the input (1) and output (2). Pref. the second parallel capacitor (C03) comprises a T network with two fixed capacitors in the horizontal arm and a variable capacitor coupled to earth in the transverse arm.
Patent DE-2941090-A1 (DE)
Title: Armoured vehicle adjustable gun support - has swinging arm connected to cylinder by cam, locked at raised and lowered positions
Inventor: LECHNER REINHARD
IPC: F41A27/24
Filed: 1979-10-10
Abstract: The gun mounting for an armoured vehicle includes a circular support (7) for the barrel of the gun, at the top of a vertical cylinder (6) which raises and lowers it. This support is also attached to a system of levers which includes a forked arm (10) with a cross piece at the front forming a horizontal pivot axis (11) for tilting the gun. Between these two arms is incorporated a device for locating the gun in its upper and lower positons. This includes a locating block (12) with pointed ends, which rotates through a limited angle about a horizontal axis. The pointed ends are brought into contact with cam surfaces on a wedge shaped opening through a block under the circular support. The locating block is attached to the lower ends of the two swinging arms.
Patent DE-2941986-A1 (DE)
Title: Utilisation of atmospheric electrical energy - to charge storage battery over long period by connecting it to metal rod with alpha particle emitter
Inventor: WENK PAUL DR
IPC: H05F7/00
Filed: 1979-10-17
Abstract: The use of atmospheric electrical energy rests on the observation that, in the steady state, an electric current flows from a positively charged layer some 60 km above the earth to the negatively charged earth surface. The electric field strength in the steady state is some 120 volts per meter. By erecting a metal rod or small plate with a trace of an alpha particle emitter, for example thorium, and connecting it by a copper wire to the positive terminal of a battery, the latter can be charged over a long period. The negative battery pole is connected to earth, and the battery case well insulated from earth. After charging the battery can be used in the normal manner.
Patent DE-2942230-A1 (DE)
Title: Footwear industry components numbering system - has several type wheels with counter mechanism for multiposition stamping
Inventor: LANG ALBERT
IPC: B41K3/08
Filed: 1979-10-18
Abstract: The numbering system includes several type wheels (6, 7a-7c) each moved by its own piston cylinder unit which has an associated switch mechanism and can be operated independently so that multiposition stampings can be carried out wherein each individual piston cylinder unit and thus each type wheel can be controlled by the counter mechanism and can be switched on and reset in the desired manner. To reset the type wheels when all the pairs of shoes belonging to each part have been stamped each type wheel or cylinder can be controlled by its own key.
Patent DE-2942640-A1 (DE)
Title: Graphical representation arrangement for VDU - is of signals of different frequencies using interlaced image store read-write periods to eliminate flicker
Inventor: DOLLHEIMER JUERGEN DIPL ING
IPC: G01R13/22
Filed: 1979-10-22
Abstract: The arrangement enabling graphical representation of signals of different frequencies on the screen of a visual display unit has an image reproduction store into which the signals are placed prior to being cyclically read out and displayed. It eliminates the lengthy dark screen periods occurring with low frequency signals in conventional arrangements in which data cannot be simultaneously read into and out of the store. In a first mode of operation data is input to the store until it is full. At this point the data is displayed. In a second operating mode, signals are input to the store following one or more displays of the already stored data. When input, the signals are displayed with the previously stored signals. A frequency discriminator selects the first or second mode for input frequencies greater or less than a certain frequency, e.g. the display line frequency.
Patent DE-2943533-A1 (DE)
Title: Metal, esp. copper and zinc electrowinning from sulphate - and opt. chloride soln., in diaphragm cell using chloride anolyte to give chlorine and alkali(ne earth) chloride by products
Inventor: HOERBE RUDOLF DIPL ING DR
IPC: C25C1/00
Filed: 1979-10-27
Abstract: In the electrowinning of metals from aq. soln. of their sulphates and opt. chlorides in a cell provided with a cation exchange membrane, the metal salt soln. is passed through the cathode compartment and a conc. magnesium and/or sodium and/or potassium chloride soln. is passed through the anode compartment. The method is esp. useful for metal (esp. Cu and/or Zn) recovery, with simultaneous recovery of chlorine and Mg, Na and/or K sulphates, from sulphate solns. obtd. by leaching sulphatising roasted sulphide ores, oxidative sulphuric acid pressure leaching of sulphidicores or pyrometallurgical intermediate products, or sulphuric acid leaching of oxidic ores or pyrometallurgical intermediate products, and sulphate/chloride solns. obtd. by leaching chloridising roasted pyrites cinders.
Patent DE-2944268-A1 (DE)
Title: Alarm clock with radio or tape recorder - has model crowing cockerel mounted on clock or surrounding clock face, and providing tone signal simulating cock crow
Inventor: HAUSSER MARGARETHE LILLY
IPC: G04B23/02
Filed: 1979-11-02
Abstract: The alarm clock has a case on which a figure of a cockerel is mounted, or which is itself formed in the shape of a cockerel. The alarm uses a tone generator which provides a simulated cock crow. When the latter is provided the head of the cockerel may be tipped up, the beak opened and the wings moved etc. The figure of the cockerel may be made of metal, plastics, or ceramics and in the case where the clock is incorporated in the body of the figure it may have a hinged cover for the clock face. In the case where the clock acts as the base on which the figure of the cockerel is mounted, it may be combined with a radio or tape player.
Patent DE-3000547-A1 (DE)
Title: Moulding thermoplastic tube end into sharp edged flange - with ring in sliding mechanism forcing heated end into cavity
Inventor: BRAUN RUEDIGER
IPC: B29C57/06
Filed: 1980-01-09
Abstract: A flanged jointing sleeve is moulded in the end of a thermoplastic tube by sliding the tube with heated end on to an expanding mandrel and enclosing with the mould which has an enlarged section to form the flange. The tube wall is moulded into the flange section by flanging ring; while its pressure is maintained the mould tools are moved axially to mould the tube wall fully into the flange shape. The radial pressure from this ring is exerted beneath the flange area, pressure is then applied axially so that one end of the flange first meets the ring at its front edge and, in the second stage of operations, the flange is completed by the action and pressure of the back edge of the ring. Flanges are produced with sharp edges.
Patent DE-3003065-A1 (DE)
Title: Hydraulic connector for mining machinery - has outlet nipples in circular flange joined to inlet nipples in rectangular block
Inventor: NEITEMANN BERNHARD
IPC: E21D23/26
Filed: 1980-01-29
Abstract: The connector has a rectangular block (20) with a circular coupling flange (21) at one end. The flange contains nipples arranged in a circle to accept mating nipples from high pressure pipes which are held in a mating flange. Radial and transverse bores in the connector join the nipples in the flange with nipples (1-7) arranged in straight parallel lines in the block part (20) of the connector. Pipes from control valves are run together and connected into the block. Pipes of varying lengths are permanently attached from parts of machine to the mating flange. A single operation connects all these to the connecting flange.
Patent DE-3004968-A1 (DE)
Title: Fuel compsn. contg. iron oxide - in form of by=product waste obtd. in steel prodn. and a metallic reducer
Inventor: DEARDORFF PAUL A
IPC: F24V30/00
Filed: 1980-02-11
Abstract: Compsn. for heat prodn. comprises (by wt.%): 50-95 of an Fe-contg. byprod. (I) of steel prodn., e.g. Fe oxide; a mineral acid; 10-25 pulverulent Al, Mg or Mn; and water. A retardant such as lime or sand may also be included. (I) is pref. >=1 of flue dust, mill scale, BOP dust, filter cake or a sinter blend. Pref. mineral acid is HCl and pref. reducing metal is Al or particle size is not 1/8 in.; in one embodiment Al dross is used. The pref. amt. of Al is 15-25 wt.%. Compsn. can be ignited to burn at >=6000 degrees F and contains low cost, easily available materials.
Patent DE-3008559-A1 (DE)
Title: Toner collecting tray for photocopier - has disposable container fitted over magnetic collecting roller
Inventor: THILO KLAUS
IPC: G03G21/10
Filed: 1980-03-06
Abstract: A toner collecting tray (10) for a photocopier collects the toner removed from the process drum and when full is disposed of and replaced by a fresh tray. The tray is made of non-ferromagnetic material and fits over the magnetic collecting roller (5), to enclose the roller. A scraper (2) loosens the toner and the rotation of the magnetic roller moves the toner over the surface of the non-ferrous tray into the reservoir. The tray is totally enclosed, save for the scraper slit. The movement of the toner follows the rotation of the magnetic roller and causes swirling inside the reservoir, to aid stacking of spent toner. The tray is removed by pulling it over the magnetic roller, with a min. of spillage. The tray (10) and the tube (7), which fits over the roller, are made from the same piece of material.
Patent DE-3009487-A1 (DE)
Inventor: MAURER FRITZ DR
IPC: C07C67/307
Filed: 1980-03-12
Abstract: In the preparation of a 1,1-dihalogenoalkene of the formula   <IMAGE> in which R1 is a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, and R2 is an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, or R1 and R2 together form an optionally branched and/or optionally benzo-fused hydrocarbon chain, and X1 and X2 each independently is a halogen atom, wherein a carbonyl compound of the formula   <IMAGE>  is reacted with a trihalogenoacetate of the formula   <IMAGE>   in which X3 is a halogen atom, and M(+) is an alkali metal ion or one equivalent of an alkaline earth metal ion, in the presence of an approximately equimolar amount of a phosphorus-containing compound, the improvement which comprises employing as said phosphorus-containing compound a phosphorous acid trialkyl ester or a phosphorous acid triamide and effecting the reaction at a temperature between about 0 DEG  and 200 DEG  C. A preferred end product is   <IMAGE>  and the preferred phosphorus-containing compound is trimethyl phosphite, triethyl phosphite, tripropyl phosphite or phosphorous acid tris-dimethyl-amide.
Patent DE-3010492-A1 (DE)
Title: Circular-section pipe stop valve - has pockets in housing accommodating protrusions on slide lower edge when shut
Inventor: THUN JUERGEN
IPC: F16K3/02
Filed: 1980-03-19
Abstract: The stop valve is for a circular-section pipe, having a slide moving up and down in a housing. A round-section sealing strip is fitted in the lower half of the opening, and the housing is shaped to fit against the lower edge of the slide. This lower edge (14) of the slide protrudes downwards (13) on both sides, while in the housing below the slide the opening is extended by rounded pockets (12), in which the protrusions on the slide fit in the shut position. These pockets can extend beyond the slide in the direction of flow.
Patent DE-3012219-A1 (DE)
Title: Reversing pneumatic booster for pneumatic regulator - has cylindrical disc forming control body of up to twice height of control slot to output pressure chamber
Inventor: OTTENI HERMANN ING GRAD
IPC: G05D16/16
Filed: 1980-03-28
Abstract: The reversing pneumatic booster has an input pressure chamber with a resilient wall, an output pressure chamber, a chamber connected to atmosphere, and a pressure chamber with an auxiliary energy source, connected to the supply pressure. A cylindrical transversely split control bush is connected to the chamber connected to atmosphere, and to that with the auxiliary energy source. Its control slot leads to the output pressure chamber, and has control edges parallel and in a mirror image pattern to the radial plane of the split. A control body moves axially in the bush over the slot, being affected indirectly by the input pressure via a tappet connected to the resilient wall, and thrust directly in the opposite direction by the supply pressure. The control body is a cylindrical disc (12), whose height is between 1.2 and 2 times that of the control slot (9).